Fig. 8

Observed tilt angle of wavevector anisotropy as a function of the true tilt angle at different values of spectral slopes (top panel) \(\alpha = 1\) (black), \(\alpha = 2\) (gray), and \(\alpha = 3\) (light gray). The same angle relation at different elliptic ratios \(\epsilon _{\mathrm{true}} = 0.05\) (black), \(\epsilon _{\mathrm{true}} = 0.1\) (gray), and \(\epsilon _{\mathrm{true}} = 0.5\) (light gray). The observed elliptic ratio as a function of the true ratio at different values of spectral slopes (bottom panel) \(\alpha = 1\) (black), \(\alpha = 2\) (gray), and \(\alpha = 3\) (light gray)